Heating-stove.



M. L. MILFORD.

HEATING STOVE. APPLICATION FILED FEB. 7,19l6.

2 SHEETSSHEET I.

THE COLUMBIA FLANOURAPH 1704. WASHINGTON D c M. L. MILFORD. HEATING STOVE-I.

APPLICATIONIILED FEB. 7, 1916.

1,178,867. Patented Apr. 11, 1916.

2 SHEETS-SHEET 2- MARK LANE MILFORD, OF LINDEN HEIGHTS, Oil-I10.

HEATING-STOVE.

Specification of Letters Patent.

Patented Apr. ii, rare.

Application filed February 7, 1916. Serial No. 76,620.

To all whom it may concern:

Be it known that 1, MARK L. MILFORD, a citizen of the United States, residing at Linden Heights, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in'Heating- Stoves, of which the following is a specification, reference being bad therein to the accompanying drawing.

This invention relates to improvements in heating stoves, and particularly to a novel construction and arrangement of grates for coal burning stoves, the primary object of the invention being to provide a novel construction and disposition of the grate within the stove body, by means of which the more thorough and efficient oxygenation of the fuel and gases is secured and better combustion obtained, with the generation of a higher degree and amount of heat and increased economy in the use of fuel.

A further object of the invention is to provide a construction and arrangement of grate in connection with the casing walls and draft door of a stove, by means of which air will be supplied to all portions of the fuel and generated gases, the heat thrown off at a lower elevation for radiation, the walls and surfaces of the stove better protected against excessive heating through contact with the hot fuel, and

greater ease afforded in shaking the grateand keeping it clear of ashes and clinkers.

WVith these and other objects in view the invention consists in the features of construction, and the combination and arrangement of parts hereinafter described, reference being had to the accompanying draw ings, in which:

Figure 1 is a front elevation ofa heating stove constructed in accordance with my invention; Fig. 2 is a horizontal transverse section through the same; Fig. 3 is a vertical front to rear section through the stove; and Fig. 4: is a detail vertical section through one side of the fuel basket and grate, and showing one of the supporting brackets.

Referring to the drawings, 1 designates the body, drum or casing of the stove, which is preferably in the form of a vertically disposed cylinder, composed of one or more suitably united sections of cast or sheet metal, as desired. This body or casing rests upon a suitable bottom or base 3, supported at a suitable elevation upon legs 4 and which is closed against the escape of ashes or other materials dropping from the grate. The top 5 of the stove may be dome shape or other suitable formation, and the stove body or casing is provided at any suitable point with an outlet 6 for the escape of the prod nets of combustion and which is connected,

in practice, with a flue or chimney of a pipe leading thereto. In accordance with my in ventlon, the stove is provided at its top with a fuel feed inlet 7 closed by a hinge door or lid 8, and'at the bottom of the casing is pro- I vided an opening 9, normally closed by a door 10, through which the ashes may be removed from the ash pit 11. The two doors are adapted to close the openings air-tight, and the door 10 is provided with draft openlngs 12 controlled by a rotary damper 13 adjustable through the medium of a rotary shaft or stem 14, whereby the draft open- 7 ings may be governed, as required, according to the amount of draft or air supply desired at anytime in the use of the stove.

Arranged within the stove is a fire pot or basket 15, which is preferably circular in form and composed of a casting or sheet metal, having at its base an annular flange or rim 16, said pot or basket being open at the top and provided, in'its sides with vertically extending slots or openings 17. This basket is of less diameter than the stove .body or casing so as to leave an intervening space'or channe1 18 of suitable width to provlde for the upward circulation of air.

and to also protect the body of the stove from direct contact with the basket or the burning fuel thereon. Provision is thus made for the upward circulation of drafts of air'which not only protect the stove body from an excessive degree-of heat, but adapts the air taken in through the opening 9-or ventilation passages 12to pass to the top of the stove andalso through the slots or openings 17 in the basket or fire pot, whereby thefuel and gas will be thoroughly and efficiently oxygenated so as to secure more com plete combustion and a more complete con-, sumption of the fuel, giving a greater degree of heat and'securing economy in the use The fire pot or basket rests upon a bottom plate or grate 19, which is provided with a central row of spaced parallel grate bars 20 and intervening slots 21 and anouter annular row or series of radial grate bars 22 and slots 23, such construction permitting free upward passage of air through the fuel from the ash pit and also the free downward passage of the ashes through the grate, thus allowing the grate to be shaken and the ashes to be discharged with facility. The flange 16 of the basket is grooved upon its under side to form a race-way 24 for antifriction bearing balls 25, which turn. in contact with the grate 19, so that either the basket or the grate may be oscillated in an arcuate path for the shaking action. In the present instance, the basket is suitably formed so as to be engaged by a handle 26 which may be inserted through the doorway 9 and whereby the shaking operation may, when required, be conveniently carried out; For the purpose of supporting the basket and grateabove the bottom 3v and so. as to.

form the ash pit 11, vertical bracket members 2-7 are employed, each having a base 28 suitably fastened to the bottom 3 and being is supported, while the upper wall of the slot is curved correspondingly to, the flange 29 andis extended in the form of a retainingbar or finger 31 which engages over the flange and bearsagainst the basket and thus holds the basket against upward, downward or lateral displacement, or movement in any direction, except for rotation in a horizontal plane for the shaking-action. Both the basket and grate are thus firmly and securely supported in spaced relation to the casing to provide the air circulating spaces. and the ash pit, and so as to allow the air to pass up through the bottom and sides of the basket, whereby a thorough and efficient oxygenation of the fuel is obtained.

It will be observed that the construction described does away entirely with the use of cumbersome grates and fire boxes, and that no fire-brick lining is necessary inasmuch as the body of the stove is protected by. the intervening air spaces and traveling currents of air, and that no obstructions are offered to the free circulation of the air or to the dislocation and downward movement of all: ashes, clinkers, etc. Furthermore, it will be seen that the grate and basket are simple of construction and may. be applied and removed for renewal or repairs without expert aid and by simply detaching the bolts or other fasteners connecting the brackets 27 with the base It will be observed that the opening 9 in the front of the stove extends to, equal degrees above and below the line of the grate, thus allowing air to pass tot the ash pit below the grate and to the space 18 between the sides of the basket and the stove body, so. that an eflicient distribution of the airwill be obtained. hen the draft openings are closed, the stove will be airtight, thuspreventing the unduly rapid burning of the fuel and further securing economy of consumption of the fuel materia Having; thus described my invention. I claim:

1. A stove including a body, brackets secured to and extending upwardly from the bodyand having recessed portions. forming shoulders and overhanging projections. a grate resting upon said shoulders, a fuel basket mounted upon the grate and having openings in the sides thereof, said basket having an annular outwardly extending flange engaging the recesses of the brackets and extending under said overhanging pro jections, a-n-tifricti on bearings between the grate and the flange of the basket.

2. A stove, including a body having a fuel feed opening: at its top and a doorway arranged adiacent to but above the bottom thereof, doors for closingsaid opening and doorway, the door for closing said doorway being provided with. ventilation means. brackets supported; by the stove body, a grate supported by said brackets. in spaced relationship, to the bottom and sides of the body, a fuel basket provided with openings in its sides and spaced from the wall of the body to form. an intervening air space, said basket having an outwardly extending flange at its baseengaged by thebrackets so as. t hold the basket from displacement, and; antifriction bearings between the grate and flange of the basket, the grate being arranged about' midway of the height of the saiddoorway.

In testimony whereof I hereunto aflix my signature in. the presence of two witnesses.

MARK LANE MILFORD.

Witnesses;

GL N VMHOORNING, VIIOWARD M. CORNING.

Copies of, this patentv may be obtained for five, cents each, by addressing the Commissioner of Patents.

' W shing n, 1-, G. 

